Dave Portnoy just stirred up the Ohio State vs. Michigan rivalry on his Big Noon Kickoff debut! He walked on stage in Columbus singing Michigan’s fight song, then told Buckeye fans to “shut up” after they booed him. The real kicker? He flashed a “Still Can’t Beat Michigan” shirt and claimed OSU’s national title means nothing to Wolverines. Fans are split: was Portnoy just hyping the rivalry, or did he cross the line? #Entertainment #Celebrity #DavePortnoy